CN106094315A - There is the display device of PDLC - Google Patents
There is the display device of PDLC Download PDFInfo
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- CN106094315A CN106094315A CN201610282501.2A CN201610282501A CN106094315A CN 106094315 A CN106094315 A CN 106094315A CN 201610282501 A CN201610282501 A CN 201610282501A CN 106094315 A CN106094315 A CN 106094315A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13476—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which at least one liquid crystal cell or layer assumes a scattering state
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
- G02F1/13347—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals working in reverse mode, i.e. clear in the off-state and scattering in the on-state
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
- G02F1/133557—Half-mirrors
Abstract
There is the display device of PDLC.Disclosing a kind of display device, described display device includes viewing area, and this viewing area has the outward appearance of particular color or by using PDLC to show specific picture under non-driven state, to improve such as the aesthetic appearance in household electrical appliances.Described display device includes reflecting dispersion layer, and described reflection dispersion layer is arranged on a display panel, and wherein, described reflection dispersion layer includes: PDLC layer, and described PDLC layer is between first substrate and second substrate；And transflection layer, described transflection layer is disposed between PDLC layer and second substrate, with to carrying out transmission from described display floater to the light of external emission and reflecting from the light of external incident.
Description
Technical field
The present invention relates to a kind of display device.It is more particularly related to one has PDLC
(PDLC) display device.
Background technology
Along with the progress of information age, for visually showing that the display field of the signal of telecommunication is developed rapidly.Response
In this trend, have been developed for having the various flat pannel display of the premium properties of the most slim, lightweight and low-power consumption
Device replaces existing cathode ray tube (CRT).
Panel display apparatus can include liquid crystal display (LCD) device, organic light emitting display (OLED) device,
Electrophoresis showed (EPD, Electronic Paper shows) device, plasma display (PDP) device, FED
(FED) the moistening display of device, electroluminance display (ELD) device and electricity (EWD) device.
During driving, the panel display apparatus of prior art shows image in the display area, is simultaneous for each pixel
Launch the light with certain luminance and particular color.But, during non-driven, the panel display apparatus of prior art
Black is shown by viewing area.By this way, in the panel display apparatus of prior art, owing to viewing area is not
Black is provided under the non-driven state of the electric power provided, therefore occurs in that the problem that (such as household electrical appliances) aesthetic feeling is bad.
Summary of the invention
Therefore, the present invention is directed to a kind of display device, which substantially eliminates restriction and shortcoming due to prior art and
One or more problem caused.
It is an advantage of the present invention to provide a kind of display device, this display device includes the outward appearance with particular color or is
Make also by the viewing area using PDLC (PDLC) to show specific picture during non-driven state,
To improve the aesthetic feeling in such as household electrical appliances.
The extra feature and advantage of the present invention be will be set forth in the description that follows, and one part will according to description
Become more fully apparent, or can be understood by the practice of the present invention.By by the description write and power thereof
The structure that profit requires and particularly points out in accompanying drawing realizes and obtains objectives and other advantages of the present invention.
In order to realize these and other advantage and according to the purpose of the present invention, such as embodied herein and extensive description
, include according to the display device with PDLC (PDLC) of the present invention: reflection dispersion layer, institute
Stating reflection dispersion layer and be arranged on said display panel, wherein, described reflection dispersion layer includes: PDLC layer, institute
State PDLC layer between described first substrate and described second substrate；And transflection layer, described transflection layer is arranged
Between described PDLC layer and described second substrate, to carry out transmission to from described display floater to the light of external emission
And reflect from the light of external incident.
It should be appreciated that the aforementioned general description of the present invention and following detailed description are all exemplary and explanatory,
And it is intended to provide further explanation to the present invention for required protection.
Accompanying drawing explanation
Accompanying drawing is included to provide a further understanding of the present invention, and is integrated in the application and constitutes the application
A part, described accompanying drawing shows embodiments of the present invention and for explaining that the present invention's is former together with description
Reason.In the accompanying drawings:
Fig. 1 is the cross-sectional view illustrating liquid crystal indicator according to the first embodiment of the invention；
Fig. 2 is the cross-sectional view illustrating the display panels shown in Fig. 1；
Fig. 3 is the cross-sectional view illustrating the PDLC layer shown in Fig. 1；
Fig. 4 A, Fig. 4 B and Fig. 4 C are the cross-sectional views of the PDLC layer illustrating the modified example according to Fig. 3；
Fig. 5 is the schematic diagram illustrating and driving the liquid crystal indicator shown in Fig. 1 in the first pattern；
Fig. 6 is the schematic diagram illustrating and driving the liquid crystal indicator shown in Fig. 1 in a second mode；
Fig. 7 is the schematic diagram illustrating and driving the liquid crystal indicator shown in Fig. 1 in a third mode；
Fig. 8 is the perspective view illustrating liquid crystal indicator second embodiment of the invention；
Fig. 9 is the perspective view of the liquid crystal indicator of the modified example according to Fig. 8；
Figure 10 is the cross-sectional view illustrating the liquid crystal indicator shown in Fig. 8；
Figure 11 is the schematic diagram illustrating and driving the liquid crystal indicator shown in Figure 10 in a display format；
Figure 12 is the schematic diagram illustrating and driving the liquid crystal indicator shown in Figure 11 with white mode；
Figure 13 A, Figure 13 B and Figure 13 C are to illustrate the first electrode 450 and the second electrode 420 according to composition of the present invention
Exemplary plot；And
Figure 14 is the exemplary plot of the portable electron device illustrating the application present invention.
Detailed description of the invention
The disclosedest term should understand as follows.
If be not specifically defined within a context, then the term that odd number is expressed should be read to include plural number and expresses and single
Number is expressed.Such as " first " is only used for the term of " second " distinguishing an element mutually with other element.Therefore,
The scope of claim is not limited by these terms.However, it should be understood that such as " include " or " tool
Have " term be not precluded from one or more feature, quantity, step, operation, element, parts or their group
The existence closed or probability.It should be appreciated that term " at least one " includes all group relevant to any one
Close.Such as, " at least one in the first element, the second element and third element " can include from the first element,
All combinations of two or more elements selected in the second element and third element and the first element, the second element
With each element in third element.If additionally, mention the first element be positioned in the second element " above ",
Then it should be appreciated that the first element and the second element can contact with each other, or can be at the first element and the second element
Between insert third element.
Hereinafter, by be described in detail by referring to the drawings according to the present invention, there is PDLC (PDLC)
The embodiment of display device.
As reference, can be based on flat display apparatus (such as liquid crystal display (LCD) device, FED (FED)
Device, plasma display (PDP) device, organic light emitting display (OLED) device and electrophoresis showed
Device (EPD) realizes the display device of the present invention.In the following embodiments, although liquid crystal indicator will be described
As the example of panel display apparatus, it is noted that the display device of the present invention is not limited to liquid crystal display dress
Put.
Fig. 1 is the cross-sectional view illustrating liquid crystal indicator according to the first embodiment of the invention.Fig. 2 is to illustrate
The cross-sectional view of the display panels shown in Fig. 1.Fig. 3 is the cross-sectional view illustrating the PDLC layer shown in Fig. 1.
With reference to Fig. 1, liquid crystal indicator according to the first embodiment of the invention includes display panels 100 He
Reflection dispersion layer 400.Reflection dispersion layer 400 is disposed on display panels 100.Reflection dispersion layer 400 wraps
Include: PDLC layer 410 and transflection layer 460.Transflection layer 460 is disposed in below PDLC layer 410, with to from liquid
LCD panel 100 carries out transmission to the light of external emission and reflects from the light of external incident.
In more detail, liquid crystal indicator according to the first embodiment of the invention includes display panels
100, transflection layer 460, PDLC layer 410, back light unit the 200, first polarization layer 520 and the second polarization layer 510.
Display panels 100 limits the multiple pixel regions the most corresponding with multiple pixels, and described many by controlling
The light transmission of each in individual pixel region shows image.Transflection layer is formed above display panels 100
460, to carry out transmission and to being externally entering LCD to from display panels 100 to the light of external emission
The light of plate 100 reflects.Transflection layer 460 forms PDLC layer 410, optionally to disperse external emission
Light.Back light unit 200 is disposed in below display panels 100, to irradiate towards display panels 100
Light.First polarization layer 520 is disposed between display panels 100 and back light unit 200, with to from backlight list
The light that unit 200 irradiates polarizes.Second polarization layer 510 is disposed in display panels 100 and transflector layer
Between 460, so that the light launched from display panels 100 is polarized.
With reference to Fig. 2, display panels 100 includes lower substrate 110 facing with each other and upper substrate 120, and shape
Become the first liquid crystal layer 130 between infrabasal plate 110 and upper substrate 120.In the case, infrabasal plate 110 limits
Correspond respectively to multiple pixel regions of multiple pixel, and be provided with that to be arranged to the multiple thin film corresponding with multiple pixels brilliant
Body pipe.Therefore, this lower substrate 110 is referred to alternatively as thin film transistor (TFT) (TFT) array base palte.Due to upper substrate 120
It is provided with the coloured silk being arranged to transmit the light of the wavelength region corresponding with the color of each pixel in multiple pixel regions
Color filtering optical layer, therefore upper substrate 120 is referred to alternatively as colored filter (CF) array base palte.Display panels 100
Can drive with vertical electric field pattern or horizontal electric field mode.
The structure that transflection layer 460 is bonded with each other with thin prism film (not shown) and reflective polarizer films (not shown) is formed,
And the light entering the surface which has been formed prism mountain is reflected, but does not wherein form prism mountain to entering
The light on surface carries out transmission.Transflection layer 460 to external emission and passes through the second polarization to from display panels 100
The light of plate 510 polarization carries out transmission.That is, the light specified to outside from display panels 100 is entered by transflection layer 460
Row transmission, and the light being externally entering display panels 100 is reflected.
The thin prism film of transflection layer 460 have thereon triangular prism (corresponding to above-mentioned " prism mountain ") along a side
To the surface being arranged in parallel and another surface being joined to reflective polarizer films.Reflective polarizer films can be by overlapping each other
The multilayer optical film composition of hundreds of layer, there is the refractive index of the thickness of hundreds of micron and each of which the most not
With.Reflective polarizer films has the reflectance for the light polarized in one direction and for polarization on other direction
The absorbance of light.Now, reflective polarizer films the light reflected can by be modified on other direction polarization light and
Again by reflection transmission, thus, can be increased by the amount of the light of transflection layer 460 transmission.Transflection layer 460 is permissible
Formed by polyester material and serve as reflecting mirror.Transflection layer 460 according to an example can be used as being manufactured by 3M company
With the double brightness enhancement films (DBEF) sold.It addition, transflection layer 460 can be by the gold of such as Al, Ag and Cr
Belong to layer composition.Additionally, transflection layer 460 can be made up of the Ag-coating electric wire layer with polarization characteristic.As mentioned above
The transflection layer 460 constituted can serve as the second electrode 420, the lower driving electricity of this second electrode 420PDLC layer 410
Pole.
With reference to Fig. 3, as it has been described above, reflection dispersion layer 400 includes PDLC layer 410 and transflection layer 460, this transflection
Layer 460 is disposed in below PDLC layer 410 to carry out transmission to from display panels 100 to the light of external emission
And reflect from the light of external incident.As reference, because transflection layer 460 serves as the second electrode 420, institute
With this transflection layer 460 the most not shown.
Reflection dispersion layer 400 includes on first substrate 440 facing with each other and second substrate 430, first substrate 440
The first electrode 450 and second substrate 430 on the second electrode 420.In this case, the first electrode 450 He
Second electrode 420 is arranged to facing with each other.PDLC layer 410 is arranged on the first electrode 450 and the second electrode
Between 420.PDLC layer 410 includes the second packed liquid crystal layer 320.Second liquid crystal layer 320 includes at least one
Individual encapsulated liquid crystal 321 and packed layer 322.Packed layer 322 is formed to surround and encapsulated liquid crystal 321 by polymer.The
Two liquid crystal layers 320 can be formed in the following manner: injects therebetween with the second electrode 420 at the first electrode 450
Can the polymer monomer of UV solidification and the mixture of encapsulated liquid crystal 321, derive liquid crystal and polymer by exposure
It is separated, and encapsulated liquid crystal 321.
Because being formed without specific aligning direction in encapsulation (capsule), so the liquid crystal 321 of at least one encapsulation
With its original state random arrangement.Enter the light of the second liquid crystal layer 320 of original state by random in encapsulation
Specific refractivity between encapsulated liquid crystal 321 and encapsulated liquid crystal 321 and the packed layer 322 arranged is disperseed.?
Hereinafter, it is actuated to allow the PDLC layer of the second liquid crystal layer 320 dispersed light will be referred to as " the PDLC of decentralized model
Layer 410 ".
But, if producing voltage difference between the first electrode 450 and the second electrode 420, then at the first electrode 450
With second form predetermined electric field, and the encapsulated liquid crystal 321 arranged randomly with original state between electrode 420
It is directed in one direction by the electric field between the first electrode 450 with the second electrode 420, hence into the second liquid crystal
The light of layer 320 is transmitted as it is.Hereinafter, it is actuated to allow the PDLC of the second liquid crystal layer 320 transmission light
Layer 410 will be called " PDLC layer 410 of transmission mode ".Additionally, due at the first electrode 450 and the second electrode
Forming electric field between 420, therefore the PDLC layer 410 of transmission mode may indicate that opening, and decentralized model
PDLC layer 420 may indicate that off state.
In figure 3, serve as the transflection layer of the second electrode 420 preferably by as reflecting material metal level (as Al,
Ag and Cr) make.In the present invention, transflector layer can not be electric be arranged to drive PDLC layer 410 first
Pole 450 and the second electrode 420 are separately positioned, thus, are advantageous in that the structure simplifying the present invention.
But, transflection layer can be separately positioned with the second electrode 420.I.e., as shown in Figure 4 A, transflection layer 460 can
To be disposed between PDLC layer 410 and the second electrode 420.It addition, as shown in Figure 4 B, transflection layer 460 can
To be disposed between the second electrode 420 and second substrate 430.Additionally, as shown in Figure 4 C, transflection layer 460 can
To be disposed in below second substrate 430.Owing to transflection layer 460 can be applied directly on PDLC layer 410 or heavy
Amass on the outer surface of PDLC layer 410, therefore, be advantageous in that the liquid crystal indicator according to the present invention is permissible
Manufacture with all kinds and realize.
As it has been described above, according to the first embodiment of the invention include display panels 100, transflection layer 460
Can in a display format (hereinafter referred to as " first mode "), anti-with the liquid crystal indicator of PDLC layer 410
Penetrate mirror pattern (hereinafter referred to as " the second pattern ") and skin mode (hereinafter referred to as " the 3rd pattern ")
Drive, in display pattern, show the image corresponding with picture signal in the display area, in mirror-mode, by
The exterior light of transflection layer 460 reflection is transmitted PDLC layer 410 transmission of pattern, to allow the outside of display device to go out
The most in the display area, in skin mode, transflection layer 460 exterior light reflected is divided by the PDLC layer of decentralized model
Dissipate to allow viewing area to have white.
Hereinafter, liquid crystal display dress according to the first embodiment of the invention will be described in detail with reference to Fig. 5 to Fig. 7
The first mode put is to the driving of the 3rd pattern.
Fig. 5 is the schematic diagram illustrating and driving the liquid crystal indicator shown in Fig. 1 in the first pattern, and Fig. 6 is to illustrate with the
Two modes drives the schematic diagram of the liquid crystal indicator shown in Fig. 1, and Fig. 7 is to illustrate to drive Fig. 1 in a third mode
The schematic diagram of shown liquid crystal indicator.
Fig. 5 to Fig. 7 shows and is positioned at transflection layer 460 below PDLC layer 410, that separate with the second electrode 420.
As it has been described above, liquid crystal indicator according to the first embodiment of the invention can drive with the first to the 3rd pattern.
[table 1]
| First mode (Fig. 5) | Second pattern (Fig. 6) | 3rd pattern (Fig. 7) | |
| Display panels | Open | Turn off | Turn off |
| PDLC layer | Open | Open | Turn off |
| Display screen | Image shows | Mirror-state | White states |
As shown in table 1, according to the first embodiment of the invention, when display panels 100 and PDLC410 layer
During unlatching, the liquid crystal indicator of first mode shows the image corresponding with picture signal in the display area.
As it is shown in figure 5, when the display panels 100 under opening launches the light for showing image, use
The liquid crystal indicator of first mode is driven from the light of back light unit 200 irradiation.
That is, in the liquid crystal indicator of first mode, irradiate from back light unit 200 and pass through the first polarization layer 520
The light of polarization enters in the display panels 100 of opening, and the display panels 100 under opening
The light for showing image is launched by controlling the light transmission of each in the plurality of pixel region.Transflection layer
Launch from display panels 100 and carry out transmission by the light of the first polarization layer 520 polarization for 460 pairs, and with
The transmission mode that wherein encapsulated liquid crystal 321 is aligned in a side is to drive the PDLC layer 410 under opening.
Therefore, drive transflection layer 460 to show image in the display area by transmission with to emission incident illumination.
On the contrary, as shown in Figure 6 and Figure 7, the exterior light that reflected by transflection layer 460 is used to drive the second pattern and the
The liquid crystal indicator of three patterns, because the display panels 100 under off state does not launch the light for showing image.
I.e., as shown in Figure 6, in the liquid crystal indicator of the second pattern, transflection layer 460 reflects exterior light, and
Drive the PDLC layer 410 under opening in the transmission mode, so that the light 460 reflected by transflection layer is carried out transmission
And allow the light to the transmission of external emission institute, thus, drive showing as the reflecting mirror for carrying out to external world reflecting
Show district.
Further, as it is shown in fig. 7, in the liquid crystal indicator of the 3rd pattern, exterior light is carried out instead by transflection layer 460
Penetrate, and the decentralized model being randomly disposed according to encapsulated liquid crystal 321 is to drive the PDLC layer under off state
410, to disperse the light reflected by transflection layer 460, thus viewing area has opaque white.Now,
Owing to display panels 100 and PDLC layer 410 are in the shutoff without the electric field formed for being directed at liquid crystal
Under state, therefore need not driving voltage.That is, the liquid crystal indicator of the 3rd pattern is single with without consuming
The non-driven state of voltage is corresponding, and has the viewing area of white.
As it has been described above, in the liquid crystal indicator of the first real mode according to the present invention, even if owing to not providing single
Solely under the non-driven state of power supply, viewing area also has the outward appearance of white, it is thus possible, for instance the aesthetic effect in household electrical appliances is permissible
Improved.
Meanwhile, in the first embodiment as above, owing to transflection layer 460 is to being equivalent to external incident light
The light of 40% carries out transmission, therefore there is limit in terms of improving the brightness of viewing area during the second pattern and the 3rd pattern
System.Therefore, in the display device of second embodiment of the present invention, the brightness of viewing area is in the second pattern and the 3rd
Add during pattern.
Fig. 8 is the perspective view illustrating liquid crystal indicator second embodiment of the invention.Fig. 9 is according to figure
The perspective view of the liquid crystal indicator of the modified example of 8.Figure 10 is illustrate the liquid crystal indicator shown in Fig. 8 transversal
Face figure.
With reference to Fig. 8 and Figure 10, in addition to the liquid crystal indicator shown in Fig. 1, second according to the present invention is real
Executing the liquid crystal indicator of mode, to farther include polarization control panel the 600, first reflective polarizer films 610 and second anti-
Penetrate polarizing coating 620.Polarization control panel 600 is disposed in reflection point and spreads between layer 400 and display panels 100,
And control the polarization direction of light from display panels 100.In this second embodiment, by with retouching above
State the description replacing the element identical with the element in the first embodiment.
Polarization control panel 600 includes the 3rd substrate 630 facing with each other and tetrabasal the 640, the 3rd substrate 630
On the 3rd electrode 635, the 4th electrode 645 and the 3rd electrode 635 and the 4th electrode 645 on tetrabasal 640
Between the 3rd liquid crystal layer 650.
First reflective polarizer films 610 is between the 3rd substrate 630 and reflection dispersion layer 400.Second reflective polarizer films
620 between tetrabasal 640 and display panels 100.In this case, the second reflective polarizer films 620
The second polarization layer 510 being disposed in the first embodiment on display panels 100 can be served as.Due to
Two reflective polarizer films 620 serve as the second polarization layer 510, therefore, are shown without the second polarization layer 510 in figs. 8 and 9.
Therefore, it can simplify the structure of the present invention.
Polarization control panel 600 controls the polarization direction of the light from display panels 100.Polarization control panel
600 make to pass as it is from the first extraneous linearly polarized photon or be converted to by this first linearly polarized photon
Second linearly polarized photon (or circularly polarized light).Such as, the first linearly polarized photon represents the light vibrated in the Z-axis direction,
And the second linear polarization light representations is carrying out the light vibrated in the X-axis direction simultaneously.Hereinafter, will polarization
Control panel 600 makes the state passed as it is from the first extraneous linearly polarized photon be defined as transmission mode,
And the state that this first linearly polarized photon is converted to the second linearly polarized photon is defined as by polarization control panel
Mask pattern.
Reflective polarizer films substantially has orthogonal transmission axle (transmission axis) and axis of reflection.Therefore,
Although on the direction parallel with transmission axle, the polarized light of vibration can pass through reflective polarizer films, but is putting down with axis of reflection
On the direction of row, the polarized light of vibration is reflected from this reflective polarizer films.As the reflective polarizer films according to an example,
Double brightness enhancement film (DBEF), wire-grid polarizer (WGP) or TiO2 multilayer film can be used.
Meanwhile, the first reflective polarizer films 610 and the second reflective polarizer films 620 second embodiment of the invention
Can have transmission axle mutually the same or perpendicular to one another, as shown in Fig. 8 and Fig. 9.I.e., as shown in Figure 8,
The transmission axle of one reflective polarizer films 610 and and the transmission axle of the second reflective polarizer films 620 can be parallel to each other.Such as Fig. 9
Shown in, the transmission axle of the first reflective polarizer films 610 and the transmission axle of the second reflective polarizer films 620 can be perpendicular to one another.
Hereinafter, the liquid crystal driven second embodiment of the invention will be described in detail with reference to figures 11 to Figure 12
The method of display device.
Figure 11 is the schematic diagram illustrating and driving the liquid crystal indicator shown in Figure 10 in a display format.Figure 12 is to illustrate
The schematic diagram of the liquid crystal indicator shown in Figure 11 is driven with white mode.
Second embodiment of the invention, when display panels 100 and PDLC410 layer is opened, display
The liquid crystal indicator of pattern shows the image corresponding with picture signal in the display area.
If the light transmission shaft of the transmission axle of the first reflective polarizer films 610 and the second reflective polarizer films 620 is parallel to each other
, drive polarization control panel 600 the most in the transmission mode, with by the light from display panels 100 according to former
Sample passes through.In more detail, when the display panels 100 under opening launches the light for showing image,
The light irradiated from back light unit 200 is used to drive the liquid crystal indicator of display pattern.
In the liquid crystal indicator under display pattern i.e., in fig. 11, irradiate from back light unit 200 and pass through
The light of one polarization layer 520 polarization enters in the display panels 100 under opening, and the liquid under opening
LCD panel 100 is launched for showing figure by controlling the light transmission of each in the plurality of pixel region
The light of picture.Polarization control panel 600 is to launching from display panels 100 and by the second reflective polarizer films 620
The light of polarization carries out transmission, and has been transmitted through light transmission first reflective polarizer films 610 of polarization control panel 600.
Transflection layer 460 carries out transmission to the light having been transmitted through the first reflective polarizer films 610, and with liquid crystal 321 a side
The transmission mode being upwards directed at is to drive the PDLC layer 410 under opening, with to by transflection layer 460 transmission
Light is transmitted and to light described in external emission, thus shows image in the display area.
On the contrary, if the light transmission shaft of the transmission axle of the first reflective polarizer films 610 and the second reflective polarizer films 620 is each other
Vertical, then drive polarization control panel 600 with mask pattern, with to the light from display panels 100
Polarization direction is changed.In more detail, polarization control panel 600 is launched also from display panels 100
And changed by the polarization direction of the light of the second reflective polarizer films 620 polarization, and pass through polarization control panel
The polarization direction of the light of 600 conversions is changed again by the first reflective polarizer films 610.Transflection layer 460 is to by
The light of one reflective polarizer films 610 conversion carries out transmission, and the transmission mode being aligned in one direction with liquid crystal comes
Drive the PDLC layer 410 under opening, be transmitted through as it is transflection layer 460 transmission light and to
Light described in external emission, shows image the most in the display area.
Meanwhile, when display panels 100 does not launch the light for showing image, the liquid crystal display dress of white mode
Put and utilize the exterior light reflected by transflection layer the 460, first reflective polarizer films 610 and the second reflective polarizer films 620 to show
Show white.
If the transmission axle of the transmission axle of the first reflective polarizer films 610 and the second reflective polarizer films 620 is parallel to each other
, then drive polarization control panel 600 with mask pattern, change with the polarization direction to incident illumination.More detailed
Carefully saying, in the liquid crystal indicator of white mode in fig. 12, exterior light is reflected by transflection layer 460,
And the PDLC layer 410 under off state allows encapsulated liquid crystal 321 by random alignment and to by transflection layer 460
The light of reflection disperses, and thus viewing area has opaque white.Now, due to display panels 100
It is in without being formed under the off state of electric field being directed at liquid crystal with PDLC layer 410, therefore need not drive
Galvanic electricity pressure.
That is, the liquid crystal indicator of white mode is corresponding with without the non-driven state consuming single voltage, and
And there is the viewing area of white.Light through transflection layer 460 penetrates polarizing coating 610 and the second reflective polarizer films by first
Each in 620 is reflected, and thus, the brightness of the display picture of white becomes brighter.In more detail, the most thoroughly
The light crossing transflection layer 460 is mainly reflected by the first reflective polarizer films 610.Through the light of transflection layer 460
After polarization direction is changed by polarization control panel 600, by the second reflective polarizer films 620, light is carried out two
Secondary reflection.After the polarization direction of the light of secondary reflection is changed by polarization control panel 600, light is by passing through
First polarizing coating 610 and enter PDLC layer 410.
On the contrary, if the light transmission shaft of the transmission axle of the first reflective polarizer films 610 and the second reflective polarizer films 620 is each other
Vertical, then drive polarization control panel 600 according to transmission mode, with transmission incident illumination as it is.In more detail
Ground is said, the light through transflection layer 460 is mainly reflected by the first reflective polarizer films 610.Through transflection layer
After the light transmission polarization control panel 600 of 460, by the second reflective polarizer films 620, light is carried out secondary reflection.
Changed in the polarization direction of the light of secondary reflection by polarization control panel 600 and passed through reflective polarizer films afterwards
610 by after conversion, and light enters PDLC layer 410.
As it has been described above, in liquid crystal indicator second embodiment of the invention, even if owing to not providing
Individually under the non-driven state of power supply, viewing area can also have the outward appearance of white, it is thus possible, for instance the aesthstic effect of household electrical appliances
Fruit can be improved.Additionally, the first reflective polarizer films 610 and the second reflective polarizer films 620 and polarization control panel
600 are further provided between transflection layer 460 and display panels 100, and thus the display picture of white is bright
Degree becomes brighter.
Meanwhile, even if according to the liquid crystal indicator of the present invention in the situation of the non-driven state of display panels 100
Under, it is also possible to by being patterned showing specific image to the first electrode 450 and the second electrode 420, to drive
Drive PDLC layer 410 and drive the first electrode 450 and the second electrode 420 of institute's composition independently.
Figure 13 A, Figure 13 B and Figure 13 C are to illustrate the first electrode 450 and the second electrode 420 according to composition of the present invention
Exemplary plot.
With reference to Figure 13 A, Figure 13 B and Figure 13 C, in reflection dispersion layer 400, when watching in the plane, it is used for
Drive the first electrode 450 of PDLC layer 410 and the second electrode 420 divided and be patterned into multiple region.More
In detail, dispersion layer 400 will can be reflected according to the first electrode 450 and the second divided region of electrode 420
Being categorized as first area 700 and second area 710, first area has during the non-driven of display panels 100
There is opaque white, and second area 710 has black during the non-driven of display panels 100 or appoints
What its color.
When driving PDLC layer 410 with aforementioned decentralized model during the non-driven at display panels 100, with
The reflection dispersion layer 400 of first area 700 correspondence has white.At the reflection dispersion layer corresponding with second area 710
In 400, PDLC layer 410 can comprise the pigment with black or particular color, with at display panels 100
Non-driven during show black or particular color.Second area 710 is during the non-driven of display panels 100
There is in viewing area the outward appearance of particular color or show specific picture.
Such as, as shown in figures 13 a and 13b, second area 710 can be with read clock information or can be aobvious
Show the region of the daily record of manufacturer.Additionally, as shown in fig. 13 c, second area 710 can be according to matrix arrangements quilt
It is divided into multiple region, and different images can be shown for each in the plurality of region.
Can will have the reflection dispersion layer as described above the first electrode 450 and the second electrode 420 being patterned
The display device of 400 is embodied as portable electric appts 800 as shown in figure 14, and at portable electron device
800 be in the lock state (or idle condition) in the case of can be actuated to read clock or specific picture.
As it has been described above, have the following advantages according to the display device of the present invention.
In the display device according to the invention, it is arranged on a display panel, therefore due to PDLC layer and transflection layer
Even if in the case of the non-driven state not providing independent power supply, viewing area can also have the outward appearance of white, thus
Aesthetic effect such as household electrical appliances can be improved.Additionally, further by the first reflective polarizer films and the second reflective polarizer films
And polarization control panel is arranged between transflection layer and display floater, thus, the brightness of the display picture of white increases
, thus aesthetic effect can be improved.
It will be apparent to one skilled in the art that in the situation without departing from the spirit or scope of the present invention
Under, it is possible to make various modifications and variations in the present invention.Therefore, it is contemplated that contain and fall into claims
And the modifications and variations that the present invention is carried out in the range of equivalent.
Cross-Reference to Related Applications
This application claims at korean patent application No.10-2015-0061061 excellent that on April 30th, 2015 submits to
First weigh, pass through to quote for all purposes to be merged into herein by the content of this korean patent application, as in this article
Explaination is general comprehensively.
Claims (12)
1. a display device, described display device includes:
Display floater；And
Reflection dispersion layer, described reflection dispersion layer is arranged on said display panel,
Wherein, described reflection dispersion layer includes:
First substrate and second substrate, described first substrate and described second substrate are facing with each other；
PDLC PDLC layer, described PDLC layer is positioned at described first substrate and described second substrate
Between；
First electrode, described first electrode is between described first substrate and described PDLC layer；And
Transflection layer, described transflection layer is disposed between described PDLC layer and described second substrate, with to from institute
State display floater carry out transmission to the light of external emission and reflect from the light of external incident.
2. a display device, described display device includes:
Display floater；And
Reflection dispersion layer, described reflection dispersion layer is arranged on said display panel,
Wherein, described reflection dispersion layer includes:
First substrate and second substrate, described first substrate and described second substrate are facing with each other；
PDLC PDLC layer, described PDLC layer is positioned at described first substrate and described second substrate
Between；
First electrode, described first electrode is between described first substrate and described PDLC layer；
Second electrode, described second electrode is between described PDLC layer and described second substrate；And
Transflection layer, described transflection layer is disposed between described PDLC layer and described second substrate, with to from institute
State display floater carry out transmission to the light of external emission and reflect from the light of external incident.
3. a display device, described display device includes:
Display floater；And
Reflection dispersion layer, described reflection dispersion layer is arranged on said display panel,
Wherein, described reflection dispersion layer includes:
First substrate and second substrate, described first substrate and described second substrate are facing with each other；
PDLC PDLC layer, described PDLC layer is positioned at described first substrate and described second substrate
Between；
First electrode, described first electrode is between described first substrate and described PDLC layer；
Second electrode, described second electrode is between described PDLC layer and described second substrate；And
Transflection layer, described transflection layer is disposed between described second electrode and described second substrate, with to from institute
State display floater carry out transmission to the light of external emission and reflect from the light of external incident.
4. a display device, described display device includes:
Display floater；And
Reflection dispersion layer, described reflection dispersion layer is arranged on said display panel,
Wherein, described reflection dispersion layer includes:
First substrate and second substrate, described first substrate and described second substrate are facing with each other；
PDLC PDLC layer, described PDLC layer is positioned at described first substrate and described second substrate
Between；
First electrode, described first electrode is between described first substrate and described PDLC layer；
Second electrode, described second electrode is between described PDLC layer and described second substrate；And
Transflection layer, described transflection layer is disposed in the side contrary with described second electrode of described second substrate,
With to carrying out transmission from described display floater to the light of external emission and reflecting from the light of external incident.
5. according to the display device described in any one claim in Claims 1-4, described display device
Also include:
Polarization control panel, described polarization control panel be disposed in described reflection dispersion layer and described display floater it
Between, it is controlled with the polarization direction to the described incident illumination from described display floater；
First reflective polarizer films, described first reflective polarizer films is positioned at described reflection dispersion layer and described polarization control panel
Between；And
Second reflective polarizer films, described second reflective polarizer films be positioned at described polarization control panel and described display floater it
Between.
Display device the most according to claim 5, wherein, described polarization control panel includes:
3rd substrate and tetrabasal, described 3rd substrate and described tetrabasal are facing with each other；
Liquid crystal layer, described liquid crystal layer is between described 3rd substrate and described tetrabasal；
3rd electrode, described 3rd electrode is between described 3rd substrate and described liquid crystal layer；And
4th electrode, described 4th electrode is between described liquid crystal layer and described tetrabasal.
Display device the most according to claim 5, described display device also includes:
Back light unit, described back light unit is disposed in contrary with described reflection dispersion layer of described display floater
Side, to irradiate light towards described display floater；And
First polarization layer, described first polarization layer is disposed between described display floater and described back light unit, with right
The light irradiated from described back light unit polarizes,
Wherein, described second reflective polarizer films be for the described light launched from described display floater is polarized
Two polarization layers.
Display device the most according to claim 5, wherein, described first reflective polarizer films and described second anti-
Penetrate polarizing coating and there is transmission axle parallel to each other.
Display device the most according to claim 5, wherein, described first reflective polarizer films and described second anti-
Penetrate polarizing coating and there is transmission axle perpendicular to one another.
10. according to the display device described in any one claim in claim 2 to 4, wherein, when flat
On face during viewing, described first electrode and described second electrode are divided and be patterned into multiple region.
11. display devices according to claim 10, wherein, the first electrode of institute's composition and the second electrode quilt
Drive independently.
12. display devices according to claim 10, wherein, according to described first electrode and described second electricity
The most divided region, described reflection dispersion layer includes first area and second area, and described first area is described aobvious
Having opaque white during showing the non-driven of panel, described second area is during the non-driven of described display floater
There is predetermined color.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2015-0061061 | 2015-04-30 | ||
| KR1020150061061A KR102294757B1 (en) | 2015-04-30 | 2015-04-30 | Display device having polymer dispersed liquid crystal |
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| Publication Number | Publication Date |
|---|---|
| CN106094315A true CN106094315A (en) | 2016-11-09 |
| CN106094315B CN106094315B (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610282501.2A Active CN106094315B (en) | 2015-04-30 | 2016-04-29 | Display device with polymer dispersed liquid crystals |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US10545365B2 (en) |
| KR (1) | KR102294757B1 (en) |
| CN (1) | CN106094315B (en) |
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| Publication number | Publication date |
|---|---|
| US10545365B2 (en) | 2020-01-28 |
| US20200110292A1 (en) | 2020-04-09 |
| US20160320644A1 (en) | 2016-11-03 |
| US10663787B2 (en) | 2020-05-26 |
| CN106094315B (en) | 2019-04-05 |
| KR102294757B1 (en) | 2021-08-30 |
| KR20160129936A (en) | 2016-11-10 |
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